LPG road tanker accident

Thanks to M. Sujith for sending news about a LPG road tanker accident that reportedly has killed 2 persons in Kerala. Read about it in this link.
I hope the lessons learnt are shared publicly.

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Major fire at Pharma factory

A major fire in a pharma plant near Halol has been reported. The cause was apparently a boiler burst. This reportedly caused a solvent fire. Read the article in this link.
 
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Blast and Fire in Venezuela refinery

News reports of a major blast and fire at a large Venezuela oil refinery are pouring in. 26 persons are feared dead. See the news report and watch raw video of the fire in this link
 
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Metrics and process safety

There is a lot of work in progress regarding leading and lagging indicators for process safety performance. While I do not dismiss the importance of the metrics, the problem is that unless the metrics are understood by the board or whoever is interpreting risk through the usage of these metrics, it will just be another non financial number. A dollar metric will grab eyeballs rather than metrics that tell you about leading indicators for process safety. This is the nature of humans. This can be avoided only by having technically competent personnel on the board of chemical companies. I believe things will improve only after it becomes legally necessary to have technically competent persons on the board of chemical companies and make them responsible for process safety management. Otherwise we will only keep seeing newer and newer terminologies but accidents will continue to happen and I will never be out of a job as a Process Safety Consultant!!
I welcome your views.

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Accidents in batch processes

The Safety, Health and Environment Association, Bharuch has posted several incidents on its website. One such incident mentions the following:
"Incident:
During nitration in reactor runaway reaction occurred and suddenly the pressure of reactor raised and explosion took place within few seconds in reactor. Manhole of reactor was opened due to high pressure. Nitric Acid, sulfuric Acid & Benzoic Acid were involved in reaction. In this incident the mixtures of acids were sprayed in process plant, company ground and nearby company. The roof sheets of plant were broken due to explosion. It was sprayed up to about 200 – 300 meters in down wind direction
Cause of Accident:
As per information received from company officials the explosion occurred due to runaway reaction during nitration from reactor of process plant.
Corrective Action
Lime was sprayed on the acidic mixture in whole the affected area in company & on the road also for neutralization. After that the road was washed out with water. Company people also sprayed lime on the acid mixture in their company ground & Process Plant.
Preventive Action
1. Process parameters to be followed strictly.
2. PRV & safety valve to be maintained in working condition with proper venting system.
3. Periodical maintenance & inspection should be done.
4. Employees should be trained in process safety.
5. Laboratory Study for knowledge relative to normal & abnormal known deviation in raw material, Process parameter"

Read more incidents on their website in this link.

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